Ignore VideoRam now that its original purpose is obsolete.

It had been necessary to allow more than a small amount of memory to be
allocated, but now those old small allocations people had configured are
getting in the way.

man/intel.man

@@ -43,17 +43,10 @@ NetBSD, and Solaris have such kernel drivers available.
 By default, the i810 will use 8 megabytes
 of system memory for graphics.  For the 830M and later, the driver will
 automatically size its memory allocation according to the features it will
-support.  The amount of memory used may be limited by using the
+support.  The
 .B VideoRam
-entry in the config file
-.B "Device"
-section.  Limiting the amount of memory used may result in features being
-disabled, so if you choose to configure it, it is advisable to check the
-__xservername__
-log file to see if any features have been disabled because of insufficient
-video memory.  In particular, DRI support or tiling mode may be disabled
-with insufficient video memory.  Either of these being disabled will
-reduce performance for 3D applications.
+option, which in the past had been necessary to allow more than some small
+amount of memory to be allocated, is now ignored.
 .PP
 The following driver
 .B Options

src/i830_driver.c

@@ -2162,8 +2162,30 @@ I830ScreenInit(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
       from = X_DEFAULT;
       pScrn->videoRam = pI830->FbMapSize / KB(1);
    } else {
+#if 0
       from = X_CONFIG;
       pScrn->videoRam = pI830->pEnt->device->videoRam;
+#else
+      /* Disable VideoRam configuration, at least for now.  Previously,
+       * VideoRam was necessary to avoid overly low limits on allocated
+       * memory, so users created larger, yet still small, fixed allocation
+       * limits in their config files.  Now, the driver wants to allocate more,
+       * and the old intention of the VideoRam lines that had been entered is
+       * obsolete.
+       */
+      from = X_DEFAULT;
+      pScrn->videoRam = pI830->FbMapSize / KB(1);
+
+      if (pScrn->videoRam != pI830->pEnt->device->videoRam) {
+	 xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
+		    "VideoRam configuration found, which is no longer "
+		    "recommended.\n");
+	 xf86DrvMsg(pScrn->scrnIndex, X_INFO,
+		    "Continuing with default %dkB VideoRam instead of %d "
+		    "kB.\n",
+		    pScrn->videoRam, pI830->pEnt->device->videoRam);
+      }
+#endif
    }
 
    /* Limit videoRam to how much we might be able to allocate from AGP */